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Mention any two metabolic disorders which can be diagnosed by analysis of urine.

Match the following:

The most abundant protein catalyses the following reaction

Match the following stages during Prophase I with their key changes:



$$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{i. Leptotene}& \text{a. Bivalents separate and remain attached at Chiasmata.}\\ \text{ii. Zygotene}& \text{b. Pairing of opposite chromosomes.}\\ \text{iii. Pachytene}& \text{c.Bivalents divide and remain attached at Chiasmata.}\\ \text{iv. Diplotene}& \text{d. Bivalents are formed and crossing over is seen.}\\ \text{v. Diakinesis}& \text{e. Chromosomes are formed and in condensed stage.}\end{array}$$

In an ecosystem, energy is dissipated as _______ energy which cannot be recycled.

In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector.
Consider the following four agents (i-iv) in this regard and select the correct option about which one or more of these can be used as a vector/vectors
(i) Bacterium (ii) Plasmid (iii) Plasmodium (iv) Bacteriophage

Smoking addiction is harmful because it produces polycyclic aromatic hydrocarbons, which cause

Which of the following is the simplest amino acid?

Which
property of DNA double helix led Watson and Crick to hypothesise
semi-conservative mode of DNA replication? Explain.

Match the following columns.

$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{A.}& \text{Duodenum}& 1& \text{A cartilaginous flap}\\ \text{B.}& \text{Epiglottis}& 2& \text{Small blind sac}\\ \text{C.}& \text{Glottis}& 3& \text{C shaped structure}\\ & & & \text{emerging from the stomach}\\ \text{D.}& \text{Caecum}& 4& \text{Opening of wind pipe}\end{array}$

The sugar present in a nucleotide is a

Sore throat, fever and formation of grey or white patch in the pharynx are the symptoms of:

In gobar gas, the maximum amount is that of

Which one of these floral formulae belongs to the family Liliaceae?

In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

Assertion: GM foods are facing widespread resistance by the people.

Reason: GM foods have mutated genes which cause infections and allergies.

Which of the following substances on the cell surface is responsible for cell to cell sensing function?

In which of the following cells, end walls are absent?

In which stage of the cell cycle, the cell are metabolically active but no longer proliferates?

Select the mismatch pair from the following:

Nucleotides are joined together by 5' and 3' carbon atoms of pentose sugar. The linkage is known as:

Define sliding filament theory of
muscle contraction.

Glycolysis occurs in

Birds that travel long distances to overcome harsh conditions are known as _______.

The number of abdominal segments in male and female cockroach is

A man of blood group A marries a woman of blood group AB. Which blood type in the offspring would indicate that the man is a heterozygote?

List the
attributes that populations but not individuals possess.

Three out breeding devices

Which of the following processes require emulsification?

Given below are types of cells present in some animals. Which of the following cells can differentiate to perform different functions?

(a) chanocytes

(b) interstitial cells

(c) gastrodermal cells

(d) nematocytes